Pile-core.



PATENTBD'P1113. 26, 1907.

' A. A. RAYMOND.

PILE CORE.

ArPmoATIoN FILED 11:13.15, 1904.

3 Y reference is made thereto for an understandf UNITED STATES IPATENTOEEICE.

ALFRED A. RAYMOND, OE CHICAGO, ILLINOIS, ASSICNOR To' RAYMOND CONCRETEPILE COMPANY, OE TRENTON, NEYS r JERSEY, A CORPORA-A TION OF NEW JERSEY.

PILE-CORE.'

Tol alllwhlom, -it may concern.' y

Be it knownthat I, ALFRED A. RAYMOND, a citizen of the United States,residing at Chicago, in the county of Cook and State of,

Illinois, have invented certain new and useful Improvements inPile-Cores, of which the following is a specification.

My invention has relation to cores employed in the process of makingconcrete piles as practiced in accordance with my Letters Patent of theUnited States ,N o. 589,026, issued to meon August 31 1897; and thevobject thereof is to. provide an expandible and contractible core whichshall be efficient and reliable in operation for the purposes intended.

The features of advantage and utility of my improved pile-'core will beapparent'i'rom the description hereinafter given.

` In the drawings, Figure lis a longitudinal section of my pile-core,taken inthe line 1 1 of Fig. 2; Fig. 2 a cross-section on the line 2 2of- Fig. 1; Fig. 3 a cross-section on line 3 3 of Fig. 1, -and Fig. 4atop plan view of the core.

The process of making or forming concrete piles, to Which'this inventionrelates, is-fully explained in my patent aforesaid, No. 589,026, as-Well as in a subse uent patent No. 700,707, issued to me'on ay 20,1902, and

ing of the details of such process. It will suffice to sayin the presentinstance vthat my process consists, in general terms, in sinking ordriving into the ground or other place an outer shell by means of a corewhich, after -filled with concrete or the like'.

such shell is sunk or driven to the required or desired depth, iswithdrawn, leaving in-.the ground the hollow shell, which is thereuponThe result Of the process is th `e`formation of a concrete pilecorresponding with" the shell. My present I invention relates wholly tothe' core which is thusemployed for sinking the shell int-'o theground., I

My present pile-core belongs to thesame type and character of core asthat described and claimed in a prior application filed by me onseptember 3, 1902, Serial N o. 121,936,`

inasmuch as the same comprisesa plurality 4of'outer sections surroundingan inner section or core proper, and such present coreis intended anddesigned as an Improvement upon the core of that application.

Referring `particularly to Fig. 1 of the drawings, my present improvedVpile-core comprisesan inner section 1 and a series or plurality of outersubstantially surrounding sections 2, which in the present instance are'three in number, although such number may, if desired, be increased, ,asfound desirable or expedient. The inner section or core proper as hereinshown 'is built up from a series of pipes or vtubes connected togetherby meansv of castings 3 or the like Vconstituting pipecouplings and alsowedges for expanding the outer sections, as hereinafter explained. Thesepipes decreasein diameter from the top to the lower end of thepile-core, so that this inner section maybe said to taper in general-correspondencewith the taper or inclination of thelouter sections.` Theuppermost pipeis connectedptoa head 4, and in the present instance thelatter screws upon suchpipe. s This head has a iianged top forming arecess 5,Within which the upper these Wedge-surfaces 7, W ich inclineinwardly and downwardly (reversely to the wedge-surfaces 6) are formedon segmental plates 8, which are secured to the Outer sections 2suitable manner, as by rivets 9.

The gter sections 2 of the core are contheret in the followingmanner:Referring more particularly to Fig. 3, the inner section has setsofbearing-lugs 10, there being three sets or pairs corresponding withthe outer sections 2 in their numberq'. Three yokes 11 are 'pivoted attheir ends to their respective bearing-lugs. The stems -12 of theseyokes are pivoted on their respective bearingins 13, which pass throughand are secure tothe ends of the outer sections 2 are receivech alongits length. In the 'resent instancel nected to the inner section 1 byhing'ing Patented reb.26,19o7.

segmental plates 8.and outer sections 2 ofthe 'I' corev in" the mannervclearly indicated in Fig. 3. These bearing lugs and yokes are slightlydistanced from each other-that is, they are.

' not arranged on the same'horizontal planeso as not to interferewith-each other in their movements. When in actual practice the innersection is raised slightly after the er.- gaging parts hereinafterdescribed are unlocked, such inner section will move somewhat relativelyto the outer sections, which, because of their hinged connections, willcontra-ct or collapse inwardly upon the inner sec-- tion as the latteris further raised.

' xo As indicated in Figs. 1 and 2, the outer coresections are hingedtothe head 4 in suitable manner, and, as shown, such head has three siderecesses, so that the head in cross-section therethrough is triangular.,as seen in Fig. 2. i5 Links 14, pivoted at their outer ends to pins 15,secured to the outer core-sections 2, and at their inner ends to pins16, securedto the head 4, constitute the connecting and hinging mediumbetween the head and outer coresections. The pins 16 bear in lugs 17,projecting from the recesses of the head, while the pins bear inopenings through the sections 2 and plates 17 riveted thereto.

To lock the core-sections in expanded con- :5 dition, locking-dogs 18are ivoted on the 1prins 16 and inclined upwardy so that their ee endswill engage notched lugs 19, projecting inward from the plates 17.Unlocking latches or levers 20 are pivoted in side openings in the outersections,'with their inner ends arranged to bear against the lockingdogsand free the latter from their engagement with the lugs 19. Thelowermost pipe of the inner section of the core is provided with acasting or hollow end piece 21, having awedge-surface 22 entering thehollow end of a point or tip 23, and bearing against the inclined orWedge surface 24 of such tip. Thistip has a central openlng 25constituting'a jet-orifice to be used in case'it is desired toem ploythe j etting process alone for sinking the shelland core instead ofdriving the same or in connection with and 1n assistance to driving orpressure .applied from above.

Arranged centrally within and concentric with the upper or larger endofthe inner section 1 of the pile-core is a jet-pipe 26, coni nectedwiththe head 4. and communicating 5o' with the passage 27 therein leadingfrom a source of fluid sup ly, generally water, although air may be tliej etting fluid employed in some instances. The lower end of'the jetpipe26 extends downwardly through the inner core-section and is attachedthereto at the point 28- where the bore becomes substantially of thesame diameter as that of such jet-pipe. Below this'point of attachmentthe olloW inner core-section itself serves as the jet conduit orpassage, which finally communicates with the jet-orifice 25 in the tip.

As hereinbefore stated,the wedge-surfaces onI the pipe-couplingscooperate with the complementary wedge-surfaces 7 on the outerconnections and serve as expanders, inasl with the yokes; substantiallyasdescribed.

section and communicating with the jet-oriitself; substantially asdescribed.

much as when the inner core-section is forced downwardly itsWedge-surfaces vbearing outwardly upon the other wedge-surfaces willexpand the outer core-sections to proper posit-ion within the shell.(Not shown.)

Although I have described more or less precise forms andk detailsofconstruction, I do not intend to be understood as limiting myselfthereto, as 1 contemplate changes in form, proportion of parts, and thesubstitution ot equivalents, as circumstances may suggest or renderexpedient, without departing from my invention and claims.

1.- A pile-core comprising an inner cr cen- 8o tral section made inparts, and a plurality of outer sections around such inner sectionsubstantially as described. t 2. A pile-cere comprising an inner orcentral section built up from a series of tubular parts connectedtogether, and a plurality of outerV sections around such' inner section;substantially as described. A

3. A pile-cere comprisin an inner section built up frcm a series cf tuular parts of decreasing diameter from the upper to the lower end, andaplurality of outer sections around such inner section; substantially asdescribed,

4. A pile-cere comprising an inner section made in separateparta-'couplings connecting 95 said parts, and a plurality of outersections around such innersection; substantially as described.

5. A pile-cere comprising lan inner section mafie in separate parts ofdecreasing diameroe "terv from the upper to the lower end, couplingsconnecting said parts, and a plurality cf outer sections around suchinner section; substantially as described.

6. A pile-cere comprising an inner hollow section, a tip secured to thelower end thereef and provided uith a jet-orifice, a plurality of cutersections around such inner section, and `a jet-pipe arranged within suchinner fice of said tip; substantially as described.

7. Apile-ctre comprising an inner hollow section, a tip secured t-o thelower endithereof and proviezi with a jet-orifice, a plurality of cutersections around such inner section, and a jet-pipe arran ed within suchinner section and secured t -ereto intermediate of the length of suchinner section, said jet-pipe communicating with the jet-orifice of thetip through the lower end of the inner section 8. A pile-cere compris' gan inner section, and a plurality of outer sections surrounding suchinner section and hinged thereto; substantially as described.-

9. A pile-cere comprising an inner section having a series of lugs,yokes pivoted t0 such lugs, and a plurality of outer sectionssurrounding such inner section and connected outer sections around theinner section," and f plates secured to the' inner face of sali outer Y10. AA pile-core comprising an inne-r section having Wedge-shapedsurfaces arran ed at intervals along its length, a plurality o outerIksections around the inner section, and arranged substantially edge toedge and We igeshaped members secured to saidf outer sec-- tions andcomplementary to said Wedgeshaped surfaces on` the inner section; sub'stantially as described. 1 1. A pile-core comprising an inner sectionhaving We "10e-shaped surfaces, a plurality ofsections and provided WithWedge-shaped surfaces cooperating With those. onv the inner section;substantially as described,

12. A pile-core comprising'an inner section made in separateparts,couplings connecting said parts and providedyvith Wedge-shapelsurfaces,and a plurality of outer sections are.

ranged around such inner section and provided with Wedge-shaped surfacescoperating with these on the inner section; substantially as described.

' 13. A pile-core comprising an inner section made in separate parts,couplings connecting said parts and provided With Wedge-shaped'lsurfaces, a plurality of outer sections around such inner section, andplatessecurei to the/ outer sections and provided Withy edgeshapedsurfaces coperating with thos 'en the inner section; substantially asdescribed.

14. A pilefco're comprising an inner section built up from a series oftubular parts of devg. creasing diameter from the upper to the lowerend, couplingsconnecting said parts and provided With Wedge-shapedsurfaces, and a plurality'of outer sections arranged around such innersection and havin Wedgeshaped surfaces coperating' Awith t ose on suchcouplings; substantially as described.

15. A -pile-core comprising a removable head;i an inner section securedthereto, and a plurality of outer sections arranged aroundsuch innersection and substantially edge toy edge; substantially` as described.

16. pile-core comprising a removable head, an inner section screwingtherein, and a plurality of outer sections arranged around such innersection and substantially edge to edge; substantially as described.

17. A pile-core comprisin a removable head, an inner section securethereto, and a f `plnralityof outer sections detachably sec-. red

to such head and having .their longitudinal edges substantiallyabutting; substantially as described.

18. g A pile-core comprising a head, an inner section secured t ereto,and a p'l' rality of outer sections hinged respectively to said head andto s'aidinner section; substantially as described'.

l 19. expandible pile-core comprisinga head, an inner section securedthereto, a plurality of outer sections around such inner secsections inexpanded condition consisting of` pivoted dogs arranged on sa1d head andlugs arrangedon said outer sections and engaged by sich dogs; lsbstantially as described.V

21. An expandible pile-core comprising a head, an inner lsection securedthereto, a plurality of outer sections around s; ch inner section whichis movable relatively to the outer sections, and means for holding saidouter sections in expanded condition consisting of pivoted dogs arrangedon said head, l'. gs arranged on said o', ter sections and engaged bysuch dogs, and pivoted latches for disenga`ging said dogs snbstantiallyas described. v

22. A pile-core comprising an'inner section, a pl'. rality of outersections aro'. nd spch innersection and plates secured to the inner faceof such outer; sections, said plates and said `inner section havingcoperating s'arfaces; substantially as described.

23. A pile-corecomprising a plurality of radially-m/ovable sectionsWhich are segmental in crosslsection', segmental plates secured to saidsections, and means for moving said segmental plates to eil'ecttheexpansion of,

said radially-movable sections; substantiallyas described.

loo

24. An expansible pile-corecomprising an inner section, a plurality ofvouter sections around such inner sectionand cooperating therewith in theexpansion of the core, and plates secured to the inner facevof suchouter sections; substantially as described.'

25. Anex'pansible pile-core comprising a plufrality of outer sectionssegmental -in crosssection,-an inner section Within sich outer *sectionsand coperatin g therewith in the expansion of the core, an segmentalplates secured tfo the inner face of such outer sections;

substantially as described.4

26. .A pile-core comprising a plurality of o-,iter radially-movablesections, an inner section arranged Within sich outer sections andcoperating therewith in the expansion ofthe core, and plates secured tothe inner face of such outer sections; substantially .as described.

027. A pile-core comprising a plrality ot outer radially-movablesections, an inner` lon-l gitudinally movable section coperatinvtherewith in the expansion of the core, an

los

plates secured to the 4inner face ofs'ich outer sections; s bstantiallyas described.

28.1A pile-core comprising a plurality of outer radially-movablesections which are segmental in cross-section, segmental plates sec-redto the inner faces of s; cli opter sections, said segmental plates beingprovided n ith projecting wedge-surfaces, an inner longit' dinalln:ovable section, and a series of enlarged annilar portions carried bysaid inner section, said portions being adapted, in the longit'. dinalmovement of said inner section, to be thrust against the aforesaidWedgeszrfaces to carse the oltward radial movement of said o1.tersections.

29. A pile-core comprising a plurality of radially-movable sections, aninner section, and plates secnred to the inner face of snch ol-tersections, said inner section and said plates having coperatingbearing-snraces; sbstantially as described.

30. A pile-core comprising a plrality of otter radially-movable sectionswhich are segmental inreross-section, an inner longitudinally-movablesection, and segmental plates secrred to the inner face of sich entersections, said inner section and said plates having bearing-facescoperating in the expansion of the core; substantially as defscribed.

31. A pile-core comprising a plurality of radially-movable sections, aninner section' havin@I ont ardly-directedbearing-s'L rfaces, and pilatessecured to the inner fac-e of the outer sections and havin bearing-strfaces cooperating with those of t e inner sectionsnb stantially asdescribed.

32. A ile-core comprising a plrrality of outer radially-movablesections, and a longiti dinallyvrnovable condrit arranged within saidopter sections, said condi it being adapted', in the longitL dinalmovement thereof, to calse the outward radial movement of said oatersections.

33. A pile-core comprising a plurality of outer radially-movablesections, a conduit arranged vt ithin said o: ter sections andlongitudinally movable relative thereto, the vs' alls of said condi itbeing provided vxith means adapted, in the longitz dinal movement ofsaid cond'. it, to effect the outward radial movement of Said outersections.

ALFRED A. RAYMOND.

' Witnesses: S. E. HIBBEN, LOUIS B. ERWrN.

